Math Is Fun Forum

rune2402

Banned

Registered: 2007-10-23

Posts: 32

Find the number succeeding and preceeding EOE base 12

Hey I know how to convert from one base to the other, but how in the world do I figure out what goes before and after EOE base 12?  I am so confused.

pi man

Member

Registered: 2006-07-06

Posts: 251

Re: Find the number succeeding and preceeding EOE base 12

You're not the only one confused.   Base 12 would use the digits 0-9 plus A and B.  "E" would not be a valid digit.   And is that an zero or the letter O?

rune2402

Banned

Registered: 2007-10-23

Posts: 32

Re: Find the number succeeding and preceeding EOE base 12

I swear I am asking the same thing. What the hell! It's in my math lab and I am so confused now. I was doing just fine, and now their asking me some weirdness.

I do not want to disregard the question , but as a sidenote, can you write me a sequence of 30 integers in base 12. I have a hard time understanding how the letters develop.

Thanks.

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: Find the number succeeding and preceeding EOE base 12

See here: Base Conversion

Maybe they mean E0E in another base (like 16) and for you to convert to Base 12 ... ?

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"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

pi man

Member

Registered: 2006-07-06

Posts: 251

Re: Find the number succeeding and preceeding EOE base 12

1 to 36 in base 12:

  1      2     3    4     5     6    7     8     9   A     B   10    (1 through 12)
11    12   13   14   15   16   17   18   19  1A   1B   20    (13 through 24)
21    22   23   24   25   26   27   28   29  2A   2B   30    (25 throught 36)

I think MathIsFun is probably right on his speculation.   Can you give us the exact question and instructions as it was given to you?

rune2402

Banned

Registered: 2007-10-23

Posts: 32

Re: Find the number succeeding and preceeding EOE base 12

You know the original question is probably a program glitch in "My MathLab," but it had me busting my brain for hours. Thanks any way. Particular thanks for the interger sequence.

Does the sequence work like this for other alphanumeric base numbers as well?

I mean I had a test where they were clearly asking me about what numbers preceded and proceeded certain base numbers that included alphanumeric digits, but how the hell am I suppose to know this whithout a chart or something. It's almost like there is a rule or something as to where the letters begin to appear in certain base number systems????????

Thanks again.